[FIX] procurement_mrp_no_confirm: Restore workflow at module uninstallation. Fixes #1002

procurement_mrp_no_confirm/README.rst

@@ -3,3 +3,10 @@ Don't confirm MOs when procured
 
 This module prevents the automatic confirmation of manufacturing order when
 procurement orders are executed.
+
+Known issues / Roadmap
+======================
+
+* If the production order workflow has been altered in the transition
+  *prod_trans_draft_picking* to have another condition, when uninstalling this
+  module, you will need to restore the custom condition.

procurement_mrp_no_confirm/__init__.py

@@ -17,3 +17,12 @@
 ##############################################################################
 
 from . import models
+from openerp import SUPERUSER_ID, api
+
+
+def uninstall_hook(cr, registry):
+    """Restore workflow condition."""
+    with api.Environment.manage():
+        env = api.Environment(cr, SUPERUSER_ID, {})
+        transition = env.ref('mrp.prod_trans_draft_picking')
+        transition.condition = True

procurement_mrp_no_confirm/__openerp__.py

@@ -28,4 +28,5 @@
     'demo': [],
     'installable': True,
     'auto_install': False,
+    'uninstall_hook': 'uninstall_hook',
 }